Tubular Goods

Drill Pipe and HWDP

We have established a complete quality control system and certified by three Quality Management Systems such as ISO9001:2000 Quality Management System, ISO14001 Environmental Management System and OHSAS18001 Occupational Health and Safety Assessment Series. All of our products are licensed to use API 5DP and 7K for over 15 years.

Casing, Tubing

The production line of heat treatment equipped with the advanced machining equipments and monitoring instruments ,which is one of few domestic advanced production lines, can heat treated annually more than 150,000 tons of pipes to calculate polish rod only.

High Pressure FRP Pipe

Surface high FRP pipe adopts 5B external upset standardized long screw connection which improves sealing property with wearproof combined thread. The advantage is that installation is so rapid and convenient that extends life.Downhole FRP pipe is high efficient and super-strengthened which is controlled to twist accurately by computer.

Specialty Casing for Heavy Oil Thermal Recovery

This type of specialty casing is a brand new patent product and self-developed as a non- pipe for heavy oil thermal recovery applications. The pipe body is made of Cr－Mo steel. The high thermal stability and collapse resistance features of such material lead to better field performances.

Precision Hot Rolled Seamless Steel Tube

Production line of the precise hot rolling seamless steel pipe adopts the leading technology ARCCU ROLL rolling system, which can manufacture the raw pipe for the casing, tubing, drill pipe body, coupling, line pipe and etc.

Fiberglass Reinforced Composite Pipe

The fiberglass reinforced composite pipe has three layers in structure and is compounded through special process. The inner tube is made of modified PVC with corrosion proof, heat-resistance, anti-friction and watertight features. Thermoset fiberglass of high strength and good rigidity is wound and cured as intermediate layer.

Φ95mm*6.5mm casing

Casing basic dimensions: Tube diameter: 95.25mm Wall thickness: 6.5mm Length: 9-11m Coupling OD: 108-110mm Connection thread: 3 1/2 special external upset tubing thread Yield compressive strength of body : 160Mpa.

H2S Corrosion Resistance Petroleum Pipes

At present, there are 1/3 oil and gas wells containing H2S gas all over the world. In china, there are several oil fields (such as Sinkiang, Szechwan) containing H2S gas. H2S gas can cause Stress Corrosion Cracking of casings and tubings, which can result in huge loss.

SL-110CQ Gas-tight Premium Threads

The self-developed SL-110CQ gas-tight premium thread has passed the test and evaluation by Xi’an Tubular Goods Research Center of CNPC. It is superior in sealing performance, excellent in collapse and buckle resistance and convenient for make-and-break. The premium thread has been successfully applied on tubular goods and used in key domestic oilfields.